OpenTSDB使用总结-(1)
-
- 样例代码
- 写入数据
- 查询数据
- 删除数据
- 样例代码
样例代码
写入数据
功能简介
使用OpenTSDB的接口写入数据。函数genWeatherData()模拟生成的气象数据，函数put()发送气象数据到OpenTSDB服务端。
样例代码
private static String PUT_URL = "http://" + OPENTSDB_IP + ":" + OPENTSDB_PORT + "/api/put/?sync&sync_timeout=60000";
static class DataPoint {
public String metric;
public Long timestamp;
public Double value;
public Map tags;
public DataPoint(String metric, Long timestamp, Double value, Map tags) {
this.metric = metric;
this.timestamp = timestamp;
this.value = value;
this.tags = tags;
}
}
private String genWeatherData() {
List dataPoints = new ArrayList();
Map tags = ImmutableMap.of("city", "Shenzhen", "region", "Longgang");
// Data of air temperature
dataPoints.add(new DataPoint("city.temp", 1498838400L, 28.0, tags));
dataPoints.add(new DataPoint("city.temp", 1498842000L, 27.0, tags));
dataPoints.add(new DataPoint("city.temp", 1498845600L, 27.0, tags));
dataPoints.add(new DataPoint("city.temp", 1498849200L, 27.0, tags));
dataPoints.add(new DataPoint("city.temp", 1498852800L, 27.0, tags));
dataPoints.add(new DataPoint("city.temp", 1498856400L, 27.0, tags));
dataPoints.add(new DataPoint("city.temp", 1498860000L, 27.0, tags));
dataPoints.add(new DataPoint("city.temp", 1498863600L, 27.0, tags));
dataPoints.add(new DataPoint("city.temp", 1498867200L, 29.0, tags));
dataPoints.add(new DataPoint("city.temp", 1498870800L, 30.0, tags));
dataPoints.add(new DataPoint("city.temp", 1498874400L, 32.0, tags));
dataPoints.add(new DataPoint("city.temp", 1498878000L, 32.0, tags));
dataPoints.add(new DataPoint("city.temp", 1498881600L, 33.0, tags));
dataPoints.add(new DataPoint("city.temp", 1498885200L, 33.0, tags));
dataPoints.add(new DataPoint("city.temp", 1498888800L, 32.0, tags));
dataPoints.add(new DataPoint("city.temp", 1498892400L, 32.0, tags));
dataPoints.add(new DataPoint("city.temp", 1498896000L, 31.0, tags));
dataPoints.add(new DataPoint("city.temp", 1498899600L, 30.0, tags));
dataPoints.add(new DataPoint("city.temp", 1498903200L, 30.0, tags));
dataPoints.add(new DataPoint("city.temp", 1498906800L, 29.0, tags));
dataPoints.add(new DataPoint("city.temp", 1498910400L, 29.0, tags));
dataPoints.add(new DataPoint("city.temp", 1498914000L, 29.0, tags));
dataPoints.add(new DataPoint("city.temp", 1498917600L, 28.0, tags));
dataPoints.add(new DataPoint("city.temp", 1498921200L, 28.0, tags));
// Data of humidity
dataPoints.add(new DataPoint("city.hum", 1498838400L, 54.0, tags));
dataPoints.add(new DataPoint("city.hum", 1498842000L, 53.0, tags));
dataPoints.add(new DataPoint("city.hum", 1498845600L, 52.0, tags));
dataPoints.add(new DataPoint("city.hum", 1498849200L, 51.0, tags));
dataPoints.add(new DataPoint("city.hum", 1498852800L, 50.0, tags));
dataPoints.add(new DataPoint("city.hum", 1498856400L, 49.0, tags));
dataPoints.add(new DataPoint("city.hum", 1498860000L, 48.0, tags));
dataPoints.add(new DataPoint("city.hum", 1498863600L, 46.0, tags));
dataPoints.add(new DataPoint("city.hum", 1498867200L, 46.0, tags));
dataPoints.add(new DataPoint("city.hum", 1498870800L, 48.0, tags));
dataPoints.add(new DataPoint("city.hum", 1498874400L, 48.0, tags));
dataPoints.add(new DataPoint("city.hum", 1498878000L, 49.0, tags));
dataPoints.add(new DataPoint("city.hum", 1498881600L, 49.0, tags));
dataPoints.add(new DataPoint("city.hum", 1498885200L, 50.0, tags));
dataPoints.add(new DataPoint("city.hum", 1498888800L, 50.0, tags));
dataPoints.add(new DataPoint("city.hum", 1498892400L, 50.0, tags));
dataPoints.add(new DataPoint("city.hum", 1498896000L, 51.0, tags));
dataPoints.add(new DataPoint("city.hum", 1498899600L, 51.0, tags));
dataPoints.add(new DataPoint("city.hum", 1498903200L, 51.0, tags));
dataPoints.add(new DataPoint("city.hum", 1498906800L, 51.0, tags));
dataPoints.add(new DataPoint("city.hum", 1498910400L, 52.0, tags));
dataPoints.add(new DataPoint("city.hum", 1498914000L, 53.0, tags));
dataPoints.add(new DataPoint("city.hum", 1498917600L, 54.0, tags));
dataPoints.add(new DataPoint("city.hum", 1498921200L, 54.0, tags));
Gson gson = new Gson();
return gson.toJson(dataPoints);
}
public void put() throws ClientProtocolException, IOException {
try (CloseableHttpClient httpClient = HttpClients.createDefault()) {
HttpPost httpPost = new HttpPost(PUT_URL);
String weatherData = genWeatherData();
StringEntity entity = new StringEntity(weatherData, "ISO-8859-1");
entity.setContentType("application/json");
httpPost.setEntity(entity);
HttpResponse response = httpClient.execute(httpPost);
int statusCode = response.getStatusLine().getStatusCode();
System.out.println("Status Code : " + statusCode);
if (statusCode != HttpStatus.SC_NO_CONTENT) {
System.out.println("Request failed! " + response.getStatusLine());
}
}
}
查询数据
功能简介
使用OpenTSDB的查询接口读取数据.函数genQueryReq()生成查询请求，函数query()把查询请求发送到OpenTSDB服务端。
样例代码
private static String QUERY_URL = "http://" + OPENTSDB_IP + ":" + OPENTSDB_PORT + "/api/query";
static class Query {
public Long start;
public Long end;
public boolean delete = false;
public List queries;
}
static class SubQuery {
public String metric;
public String aggregator;
public SubQuery(String metric, String aggregator) {
this.metric = metric;
this.aggregator = aggregator;
}
}
String genQueryReq() {
Query query = new Query();
query.start = 1498838400L;
query.end = 1498921200L;
query.queries = ImmutableList.of(new SubQuery("city.temp", "sum"), new SubQuery("city.hum", "sum"));
//查询内部温度湿度取和
Gson gson = new Gson();
return gson.toJson(query);
}
public void query() throws ClientProtocolException, IOException {
try (CloseableHttpClient httpClient = HttpClients.createDefault()) {
HttpPost httpPost = new HttpPost(QUERY_URL);
String queryRequest = genQueryReq();
//System.out.println("Request=" + queryRequest);
StringEntity entity = new StringEntity(queryRequest, "ISO-8859-1");
entity.setContentType("application/json");
httpPost.setEntity(entity);
HttpResponse response = httpClient.execute(httpPost);
int statusCode = response.getStatusLine().getStatusCode();
System.out.println("Status Code : " + statusCode);
if (statusCode != HttpStatus.SC_OK) {
System.out.println("Request failed! " + response.getStatusLine());
}
String body = EntityUtils.toString(response.getEntity(), "ISO-8859-1");
System.out.println("Response content : " + body);
}
} 删除数据
功能简介
使用OpenTSDB的查询接口读取数据，但是要加上delete参数，并且设置为true。函数genQueryReq()生成查询请求，函数query()把查询请求发送到OpenTSDB服务端
样例代码
private static String QUERY_URL = "http://" + OPENTSDB_IP + ":" + OPENTSDB_PORT + "/api/query";
static class Query {
public Long start;
public Long end;
public boolean delete = false;
public List queries;
}
static class SubQuery {
public String metric;
public String aggregator;
public SubQuery(String metric, String aggregator) {
this.metric = metric;
this.aggregator = aggregator;
}
}
String genQueryReq() {
Query query = new Query();
query.start = 1498838400L;
query.end = 1498921200L;
query.queries = ImmutableList.of(new SubQuery("city.temp", "sum"), new SubQuery("city.hum", "sum"));
Gson gson = new Gson();
return gson.toJson(query);
}
String genDeleteReq() {
Query query = new Query();
query.start = 1498838400L;
query.end = 1498921200L;
query.queries = ImmutableList.of(new SubQuery("city.temp", "sum"), new SubQuery("city.hum", "sum"));
query.delete = true;
Gson gson = new Gson();
return gson.toJson(query);
}
public void delete() throws ClientProtocolException, IOException {
try (CloseableHttpClient httpClient = HttpClients.createDefault()) {
HttpPost httpPost = new HttpPost(QUERY_URL);
String deleteRequest = genDeleteReq();
StringEntity entity = new StringEntity(deleteRequest, "ISO-8859-1");
entity.setContentType("application/json");
httpPost.setEntity(entity);
HttpResponse response = httpClient.execute(httpPost);
int statusCode = response.getStatusLine().getStatusCode();
System.out.println("Status Code : " + statusCode);
if (statusCode != HttpStatus.SC_OK) {
System.out.println("Request failed! " + response.getStatusLine());
}
}
}